Glossary
Email warm-up
DefinitionEmail warm-up is the gradual build-up of a new or unused mailbox's sending reputation, by sending a small, slowly increasing daily volume of email that recipients open, reply to and move out of spam.
A typical warm-up starts at 2-5 emails a day and grows to 30-50 over two to four weeks. Warm-up services run this through a network of mailboxes that exchange realistic conversations and react to them on human timings.
Warm-up builds the history and engagement signals providers use to judge a sender. It cannot fix missing authentication: SPF, DKIM and DMARC have to be in place first.
Related
Other terms
Sender reputation · Inbox placement · SPF · DKIM · DMARC · BIMI · Email blacklist · Spam rate · Placement test
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